import AbilityConstant from '@ohos.app.ability.AbilityConstant';
import hilog from '@ohos.hilog';
import UIAbility from '@ohos.app.ability.UIAbility';
import Want from '@ohos.app.ability.Want';
import window from '@ohos.window';

export default class EntryAbility extends UIAbility {
  onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onCreate');

  }

  onDestroy(): void {
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onDestroy');
  }

  onWindowStageCreate(windowStage: window.WindowStage): void {
    // Main window is created, set main page for this ability
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageCreate');

    windowStage.loadContent('pages/Index', (err, data) => {
      if (err.code) {
        hilog.error(0x0000, 'testTag', '未能加载内容，原因: %{public}s', JSON.stringify(err) ?? '');
        return;
      }
      hilog.info(0x0000, 'testTag', '成功能加载内容，数据: %{public}s', JSON.stringify(data) ?? '');
    });
    this.screenKeepOn(windowStage)
    //这个是then的写法
    /* let windowClass = undefined;
     let promise = windowStage.getMainWindow()
     promise.then((data) => {
       windowClass = data;
       console.info('成功获取主窗口数据: ' + JSON.stringify(data));
     }).catch((err) => {
       console.error('获取主窗口失败的原因 ' + JSON.stringify(err));
     }).then(()=>{
       let isKeepScreenOn = true;
       let promise2 = windowClass.setWindowKeepScreenOn(isKeepScreenOn);
       promise2.then(() => {
         console.info('成功设置屏幕常亮.');
       }).catch((err) => {
         console.info('设置屏幕常亮失败的原因:  ' + JSON.stringify(err));
       });
     });*/
  }

  //设置屏幕常量
  async screenKeepOn(windowStage: window.WindowStage): Promise<void> {
    let windowClass = undefined;
    let promise = windowStage.getMainWindow()
    windowClass = await promise.catch((err) => {
      console.error('获取主窗口失败的原因 ' + JSON.stringify(err));
    })
    let isKeepScreenOn = true
    await windowClass.setWindowKeepScreenOn(isKeepScreenOn).catch((err) => {
      console.info('设置屏幕常亮失败的原因:  ' + JSON.stringify(err));
    });
  }

  onWindowStageDestroy(): void {
    // Main window is destroyed, release UI related resources
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageDestroy');
  }

  onForeground(): void {
    // Ability has brought to foreground
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onForeground');
  }

  onBackground(): void {
    // Ability has back to background
    hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onBackground');
  }
}
